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    Current Operated Relay

    basically I need to be able to operate a relay which is picked my around 200-400mA. I'm trying to do this by passing a load through a resistor and an LED from a 110v AC supply. For example some LEDS that I've seen have a 50mA operating current with a 2.5v drop. I'm not sure how to work out...
  2. L

    LED Signal Dummy load

    Essentially I'm trying to make a dummy load that will pick a current operated relay. The relay requires 300mA to pick and the feed is 110v. Would I be correct in thinking that 33W would need to be drawn? In which case what value resistor could I use to be able to use a normal LED Edit: Each...
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